Beta Marine BD3 engine

[Loafer]

I have my tickover higher after having the engine stall when a heavy load went on the alternator as I was approaching Glascote bottom lock

 

Strange. I haven't been able to stall this one, even down to 250rpm when the transmission starts to rattle. There's certainly no electrical load available on ours that could affect it, especially since the alternators couldn't provide enough output at that rpm.

 

Someone pleeeeeeese answer me question! Gagging here!

[MtB]

 

So why is it that ONE of the cylinders sounds louder than the other two?

 

Eh??

 

Easy. The exhaust manifold is a three-into-one and cylinder No two fires directly opposite the outlet, while the other two have to go around a bend each.

 

MtB

 

 

 

P.S. Just guess really, but sounds plausible dunnit!

[ditchcrawler]

A 4 cylinder Garner might well sound like a bus Brian, but a 4 cylinder Gardner sounds very sweet.

Roger

Ding ding

[Loafer]

 

Easy. The exhaust manifold is a three-into-one and cylinder No two fires directly opposite the outlet, while the other two have to go around a bend each.

 

MtB

 

 

 

P.S. Just guess really, but sounds plausible dunnit!

 

It does sound plausible, and matches what some other bloke thought, nattering on the towpath. It's also what I think, but I can't believe that a closer proximity to the exhaust pipe would make that middle cylinder sound SO much more prominent. Different tone, everythink.

 

I try to listen out for it in 2-pot and 4-pot motors, but I can't remember what conclusions I may or may not have drawn. It's after beer o'clock here!

Edited December 5, 2014 by Loafer

[MtB]

 

It does sound plausible, and matches what some other bloke thought, nattering on the towpath. It's also what I think, but I can't believe that a closer proximity to the exhaust pipe would make that middle cylinder sound SO much more prominent. Different tone, everythink.

 

I try to listen out for it in 2-pot and 4-pot motors, but I can't remember what conclusions I may or may not have drawn. It's after beer o'clock here!

 

You can find out which cylinder sounds so prominent by loosening the injector on each cylinder one at a time and see which one makes the remaining two firing cylinders sound roughly similar....

 

MtB

P.S. Mine had exactly the same thing, one cylinder sounding much more prominent. Another reason I disliked the engine!

[Loafer]

 

You can find out which cylinder sounds so prominent by loosening the injector on each cylinder one at a time and see which one makes the remaining two firing cylinders sound roughly similar....

 

MtB

P.S. Mine had exactly the same thing, one cylinder sounding much more prominent. Another reason I disliked the engine!

Whoa! The one-in-three thing makes it sound like a much slower revving engine. It's nice!

 

I dunno about loosening injectors, if it's more complicated than a bra clasp. I don't want stuff squirting at me!

[MtB]

Whoa! The one-in-three thing makes it sound like a much slower revving engine. It's nice!

 

I dunno about loosening injectors, if it's more complicated than a bra clasp. I don't want stuff squirting at me!

 

 

Blimey I had to read that second bit twice, it sounded well-dodgy at first pass!

 

Yes loosening an injector is far more effort than a bra clasp

 

 

MtB

[BD3Bill]

 

 

Blimey I had to read that second bit twice, it sounded well-dodgy at first pass!

 

Yes loosening an injector is far more effort than a bra clasp

 

 

MtB

 

Yeah, and make sure you don't get high pressure diesel going in through your skin either... that'll mess ya up !

[Loafer]

 

Yeah, and make sure you don't get high pressure diesel going in through your skin either... that'll mess ya up !

 

Top advice. No, I think I'll continue to enjoy my mellow thumping and occasionally look at one of MtB's videos!

 

Er, on re-read, I should add that it's my engine doing the thumping...

[ditchcrawler]

 

 

Blimey I had to read that second bit twice, it sounded well-dodgy at first pass!

 

Yes loosening an injector is far more effort than a bra clasp

 

 

MtB

But don't you need a mate outside the door listening?

[cuthound]

But don't you need a mate outside the door listening?

I've yet to come across a bra that needed a spanner to undo it

[Athy]

Please ensure that the engine is over 16 years old and has given its consent.

[Loafer]

But don't you need a mate outside the door listening?

 

Not really. The prominent third thump is clearly audible in the engine room.

[Tonka]

But arn't all multi cylinder engines going to do the same as the exhaust manifold goes to one pipe so surely a 3lw would have a prominent cylinder

[Loafer]

...and does it?